Heating apparatus



C. W. SEXTON HEATING APPARATUS 2 Sheets-Sheet l Filed April 18 'olydan14: Se

Patented Apr. 7, 1925.

UNITED STATES CORYDON w. snxTon, or CHARLOTTE, NORTH CAROLINA.

HEATING APPARATUS.

Application filed April is, 1922. Serial No. 554,979.

To all whom it may concern:

Be it known that 1, Common W. SnxToN, a citizen of the United States,residing at Charlotte, in the county of' Mecklenberg and State of NorthCarolina, have invented new and useful Improvementsin Heating Apparatus,of which the following is a speci-' fication.

This invention relates to heating apparatus for buildings and proposesthe construction of a heater of the heated air type which is adapted tobe installed on the same fioor or level as the rooms to be heated andwill positively create and maintain circulation of air by drawing coldair from a remote point in the room which is to be heated,

or from another room or rooms, through a properly proportioned conduit,and radiatmg warm air to be carried by convection to the point or pointsfrom which the cold air is exhausted.

ber by being provided with a plurality of air fines communicating attheir opposite ends with the air space between the double walls at thetop and bottom of the heater and the front portion of which includes a'fire pot of substantially the same width as the combustion box and beingunrestrictedly open at the top and in communication with said fluechamber.

Still another object of the invention is the provision of a transversepartition wall lying in a vertical plane at an intermediate portion ofthe flue chamber and provided with a permanentlyopen avenue ofcommunication below its lower edge between the adjacent parts of saidflue chamber, and a damper-controlled opening near its upper end, thesmoke pipe being'located on the opposite side of'said partition wallfrom the fire pot.

Still another object of the invention is the provision of the doublewalled air chamber surrounding the combustion box, and having cold airconduits leading from remote points to the lower portien thereof andalso having perforations in its upper wall communicating with theatmospher nfhereby air is supplied to said air chamber to be heatedtherein, and discharged therefrom.

Still another object of the invention is the provision of a humidifierin the heated air chamber, equipped with signalling means for indicatingthe level of liquid within said humidifier. v

ll ith the above and other objects in view, my invention consists in theimproved heat ing apparatus illustrated in the accompanying drawings,described in the following specification, and particularly claimed, andin such-variations and modifications thereof as will be obvious to thoseskilled in the are to which my invention relates.

In the drawings accompanying and forminga part of this specification,and wherein the preferred embodiment of my invention is illustrated:

Figure 1 is a side elevation in cross section showing the constructionof my improved heating apparatus.

Figure 2 is a transverse cross section taken along the line 22'ofFigure 1. p

Figure 3 is a front view, partly in elevation and partly in crosssection, taken along the line 33 of Figure 1. a p Figure 41 is a crosssectional view taken along the line 4l4 of Figure 1.

spectively, the front and back outer Walls of the heating apparatuswhich are joined to the outer side walls 3 and 4:, the shape of theouter casing thus formed being rectangular. These walls are preferablymade of a heavy grade of sheet metal and are secured to the bottom andtop walls 5and 6, respectively. This casing surrounds an inner casing orcombustion box which is likewise formed of four vertical side walls '7,8, 9 and 10 which are joined at the top and bottom to the headers 11 and12, and held in place by the stay bolts 56. The combus- Referring now indetail to the several figures, the numerals 1 and 2 represent, re-

tion box is spaced from the outer casing on all sides, being supportedfrom the bottom thereof upon the upwardly extending lugs 13 and 14 whichare preferably made integral with the outer bottom wall 5. The

front walls 1 and 7 of the outer casing and combustion box areperforated with aligned rectangular openings in which is seated theframe 15 of the fuel door 16 hinged at its lower edge 52, and withanother pair of The walls 1 and 7 are also proyided"with elongatedaligning apertures which .are

separated from the airspace between said wallswhy means of a suitablediramelt).

Thisii rame has flange 'whichnloears against thed'outer. taceof, thefrontiwall 1.

The, opening thusformed-is closed hyflthe ash 610011.21, whichislzhingedly,secured to hpotf is lined with the outer front wall-.1 andcarries thedraft damperQQ. A clutch damper.5? ..operat 1ng on a threadedstem...5s,- is. mounted. on the fuel door 16. The inner and. outer. backwalls are. provided with alignedapertures at their-lower endsin-which isfitted theframe I 2' ;i:- 01: the clean-out idoor2'5. A. similar cleanout door 53 is located-at the. hack .of the ash pit. .A. flanged.thnnhle. 26 1s securedaround .the edge of a smoke. aper .ture:27 1nthetop header 11 and passing;

through .an apertureinl'the outer top wail V telescopes .into the smokepipe 28. It will thus. heehserved that the. .air space within the outercasing and surrounding the 00111 bustion box is sealed in smoke-tightinan-ner withrespectto all of the orifices opening into. the. combustionbox. ,"The outer bottom wall 5 1S supportedin spaced relation to the.floor by the stove legs which. are-0t the usual constructioin and Ttron thedaottom,

., wall 5,- on opposite -.sides of. the heater, rise braces575.,earrfying ithel'ioot restsf58.

The cold airiconduitsih and 30, which @1 6 here shown ,asltwo innuinherbut may he, in praeuce; as any? desired number; com-v municatewith the air space'betweenthe i11 nerflan'd outer casingshy means oftheopenings'filand 32, in the hottomwva'll' 5, and

lead to points in: the building or suite of rooins'to. be heated andfromwhrch the cold air is taken. 'llh e outer top wall 6.51s; perfiterated permittingtheescape of the'heatefd the atmosphere.

air-froin'the surrounding air cha nher'yinto 'A, was: isflsecured in-any suitahle'man;

her within the a'ir space between the inner 'end outer back wallsjand aspigot 34;, by means of which said tank may be drained,

.is' connected to thefllower portion or said tank. [A float 35 islocatedwithinsaidtanl;

and is provided with a stem 36, extending 'ithrOughasmtill. aperture '37in the top Wall tor reciprocation ltherethrough. At the upperend or;said-stemexternally at heating. apparatus 1s a Visual signallingelecolor to readily. engagejthe f attention. 1 This inent 38 wl1ieh ispreferablyflof a bright signalling device. responds to conditions oruidlevel within.Isaid.. .tank. "AI'fill'er. cap

9. .threadedly enga 'es an aperture-gin the. upper top wall 6adgacenttofthe upper end WVit-hin theforwardiportion of the com-'bustion box is the fire pot which extends "substantially the entirewidth of the C0111- .hustionhox. and 1s segregated in part iromthe'fiuechambe'r;'herelnaiter to he described,

by means of the transverse cast iron wall- 4t0lwhiclr makesa .tight'fitwith the bottom and sides ofsaidcombustion hox'hut tor The lire.niinates .short of the top thereof.

the fire brick '41, bestfshown .in'YFigures 1 and '2, and 'is providedwitha tlump'ing grate 42 which may he of any "desirable type.- projectsthrough aligned apertures in the side walls of the heating apparatus and"formed on its outer end witha shaker-hold fBelow the grate is. an ashpit 15 in .which is a receptacle 46. having a suliicient capacity topermit infrequent removal of the ashes. "The sliding door 18 and thefuel door 16 communicate with the fire pot above the grate, the latterbeing large enough to permit the introduction of chunks of wood ofconsiderable size into the fire pot. I

"There isno top to the fire pot nor do the walls oft-he latter convergeso asto eonstrict the openingcommunicating with the combustion hex, sothat the flames and hot gases 'fronrlthe'lirepot-are perfectly free toissue itt'orth above the w'all AC0 into' the space surroundingj'theairjflues47. Saidfiues are of the'us'uja'l. tubular construction andextend .ironifl apertures Lin .the top header .11 to alignedapertures'jji'n the bottom header 12 .an'd. engagefflanges .48 "whichsurround said a pertrhejs, lthus making, it th saidheadersfl Saidfiu'esare arranged 11in: a ,plnrallityfoi: banks or rows, as is plainly.Ish'own in "Figure 2. "Intermediate these hanksisldisposed a .partition49 which is secured to the top headerand side Walls of thetcombustionhox and extends within a rea- -.s0na;b ly'Lshortldistance orthe lower header, leaving a spacebetween its lower edge and .saidlowerheader .1 for the passage there- ..through. of gasesjen'their way tothesmoke ,:pipe.2.8. The. upper part of the partition saisconstrncted with.a-rectangular opening Y 50extending across the major portion of thewidth thereot; which opening is controlled l by a. damper-"51 which ishingedly supported .upQnJS'aid .partition'49 and operated by a or. theheater as shown .in' Figure 1.

- 'YVhenitis' desired to increase combustion .the damper 5.1. is Openedso. that the draft from the .Lfire. pot will" follow a direct pathcto'ithe. smokepipe28lWhen it is desired to obtain 'jheating efficientlythe v Idan iperJ51Jis' closed land the products of.

combustion are "compelled toidllow a toras-tight connection rod'52seciiredithereto and extending outside a tuous path down past thelower edge of the partition 49 and then up toward the smoke plpe.

By the arrangement and construction of my improved heating apparatus Ihave perfected a heating device in which uniform distribution of heat isassured by blanketing the entire surface of the heater with a layer offlowing air so that the heat is not all radiated at one spot in thevicinity of the heater but is absorbed by the flowing medium anddistributed by convection to the parts from which the cold air iswithdrawn. By providing the fire pot with an outlet-opening ofunrestricted area the products of combustion are permitted to issuefreely therefrom and to play with full intensity upon the tubular fines,and the absence of curves and inaccessible recesses on the floor of thecombustion box makes it possible to easily and completely remove sootfrom said combustion box by way of the clean-out door. The blanket ofair surrounding the combustion box acts as a heat insulation, making itperfectly safe to install the heater adja cent walls and floors of anon-fireproof na-V heaters of the usual type has heretofore usually beenneglected on account of its in accessibihty.

The concealed location of the cold It is obvious that the specificdetails of construction and configuration of parts described herein maybe modified in various ways without sacrificing the advantages of theinvention or departing from the scope thereof as defined in the appendedclaim.

Having described my invention what I claim as new and desire to secureby Letters Patent, is v A heater comprising an outer casing, acombustion box within said casing and spaced from the walls thereofforming an enveloping air chamber, an open topped fire pot in theforward part of said combustion box, a plurality of banks of verticalfiues arranged rearwardly of said fire pot and communicating at theiropposite ends with said enveloping air chamber, a smoke pipe leadingfrom the rear part of said combustion box, a vertical partition arrangedintermediate said banks of fines and between said fire pot and smokepipe for deflecting the heated products of combustion longitudinally ofsaid fines, said partition having a damper controlled draft opening atits upper end, a grating constituting the upper wall of said air chamberand extending above said fire pot and said flues and cold air supplyconduits communicating with that part of said enveloping air chamberwhich lies directly beneath said banks of fiuesl In testimony whereof Ihave hereunto set my hand in presence of two subscribing wit- IQQSSGS.

GOR-YDON Vi; SEXTON.

lVitnesses CLYDE A..-DUoKswo12 H, R. D. PUi-ILMANN.

